Catching-up of East German Labour Productivity in the 1990s

We provide empirical evidence for exogenous and endogenous catching-up of East German labour productivity to West German levels. We argue that labour productivity in East Germany has caught up faster than has happened elsewhere. The sudden formation of the German Monetary Union was followed by large transfers to East Germany, migration of workers to West Germany, reorganization and privatization of East German firms. This has quickly led to a partial closing of the organizational, idea and object gaps that existed between East and West Germany. This paper analyses labour productivity in East and West Germany using both aggregate German data and unbalanced panel analysis of developments in East and West Germany. Factors affecting the organization of production, and especially privatization and 'foreign' firms, are found to be particularly important in this context.     

Do Workers in Africa Get a Wage Premium if Employed in Firms Owned by Foreigners?

Do firms owned by foreigners pay higher wages than locally ownedfirms for apparently equivalent workers? Do such benefits accrueto all or only certain types of workers? This paper uses dataon individual wages in manufacturing industry for five Africancountries in the early 1990s to address these questions. Wepresent two main findings. First, foreign ownership is associatedwith a 20–40% increase in individual wages (conditionalon age, tenure and education) on average. This is halved to8–23% if we take into account the fact that foreign-ownedfirms are larger and locate in high-wage sectors and regions.Secondly, there is a tendency in some countries for more skilledworkers (using occupation and education categories) to benefitmore from foreign ownership than less skilled workers and thisconclusion holds after accounting for the size distributionof foreign firms. We discuss, but cannot directly test, theplausibility of two explanations for these findings: (i) foreign-ownedfirms employ technologies that are more skill-biased than technologiesin local firms and (ii) skilled workers in foreign firms aremore effective in rent-sharing than other workers. We contendthat these explanations may not be mutually exclusive and, hence,cannot be empirically distinguished.     

Joining the European Monetary Union—Comparing First and Second Generation Open Economy Models

We log-linearise the Dellas and Tavlas (DT) model of monetary union and solve it analytically. We find that the intuition of optimal currency area analysis of DT’s second generation open economy model is essentially the same as that of first generation models. Monetary union results in no welfare loss if its member states are symmetric. However, asymmetry causes loss in welfare both due to the failure of the union policy to deal suitably with a country’s asymmetric shocks and due to an active monetary policy by the union in pursuit of its distinct objectives. The asymmetry in DT is largely due to the differing wage rigidities across countries. JEL Classification Numbers: F41, F42, E4     

Die Auswirkungen des EEG auf das Energiesystem Deutschlands – Eine Betrachtung mit dem Energiesystemmodell TIMES-D

In Germany, the electricity generation from renewable energy has been promoted since the year 2000 by a feed-in tariff system, the Renewable Energy Sources Act (EEG). This article evaluates the long-term impact of the German feed-in tariffs on the development of the German energy system with the help of the energy system model TIMES-D. In the model-based analysis, both the payment side (i.e. the tariffs) and the cost side (i.e. the EEG apportionment) are taken into consideration. Through the promotion of the feed-in tariff system—in combination with the European Emission Trading Scheme (ETS)—the use of renewable energies in electricity generation in Germany rises considerably such that renewable energy sources account for almost 40% of total gross electricity consumption in 2030. Accordingly, until 2020 total EEG fee payments as well as the EEG apportionment increase significantly. The impact of the feed-in tariff system on final electricity demand is, however, relatively small. Alternative scenario settings show that the expansion of the renewable electricity generation through the feed-in tariff system clearly exceeds the development which would occur when trying to reach the reduction targets of the ETS in a cost-efficient way.     

Direct medical costs of complications of diabetes in the United States: estimates for event-year and annual state costs (USD 2012)

Objective:

To estimate the direct medical costs associated with managing complications, hypoglycemia episodes, and infections associated with type 2 diabetes expressed in 2012 United States dollars (USD).

Methods:

Direct data analysis and microcosting were used to estimate the costs for an event leading to either a hospital admission or outpatient care, and the post-acute care associated with managing macrovascular and microvascular complications, hypoglycemia episodes, and infections. Data were obtained from many sources, including inpatient and emergency department databases, national physician and laboratory fee schedules, government reports, and literature. Event-year costs reflect the resource use during an acute care episode (initial management in an inpatient or outpatient setting) and any subsequent care provided in the first year. State costs reflect annual resource use required beyond the first year for the ongoing management of complications and other conditions. Costs were assessed from the perspective of a comprehensive US healthcare payer and expressed in 2012 USD.

Results:

Event-year costs (and state costs) for macrovascular complications were as follows: myocardial infarction $56,445 ($1904); ischemic stroke $42,119 ($15,541); congestive heart failure $23,758 ($1904); ischemic heart disease $21,406 ($1904); and transient ischemic attack $7388 ($179). For two microvascular complications the event-year and state costs were assumed the same: $71,714 for end stage renal disease, and $2862 blindness. The event-year cost was $9041 for lower extremity amputations, and $2147 for diabetic foot ulcers. Costs were also determined for managing hypoglycemic episodes: $176–$16,478 (depending on treatment required), and infections: vulvovaginal candidiasis $111, lower urinary tract infection $105.

Conclusions:

This study, which provides up-to-date cost estimates per patient, found that managing macrovascular and microvascular complications results in substantial costs to the healthcare system. This study facilitates conduct of other research studies such as modeling the management of diabetes and estimating the economic burden associated with complications.     

Regional differences in the production processes of financial and social outputs of microfinance institutions

This study uses panel data of microfinance institutions across the world to compare production processes across regions, assess the relevance of unobserved heterogeneity and estimate economies of scale. Comparing a financial production process to a multidimensional production process that accounts for the presence of outreach in the objective function suggests that financial and social output reflect complements in South Asia but not in other regions. Furthermore, we find substantial economies of scale for a pure financial production process. However, accounting for outreach lowers estimated economies of scale, suggesting that producing outreach creates high transaction costs and requires exploitation of local knowledge.     

Customer-Centric Decision Support

Classification analysis is an important tool to support decision making in customer-centric applications like, e.g., proactively identifying churners or selecting responsive customers for direct-marketing campaigns. Whereas the development of novel classification algorithms is a popular avenue for research, corresponding advancements are rarely adopted in corporate practice. This lack of diffusion may be explained by a high degree of uncertainty regarding the superiority of novel classifiers over well established counterparts in customer-centric settings. To overcome this obstacle, an empirical study is undertaken to assess the ability of several novel as well as traditional classifiers to form accurate predictions and effectively support decision making. The results provide strong evidence for the appropriateness of novel methods and indicate that they offer economic benefits under a variety of conditions. Therefore, an increase in use of respective procedures can be recommended.     

Central banks in the political arena

The central banks of the Federal Republic of Germany and the USA have recently drawn renewed fire because of their independent stance. ¹ Such attacks often hinge upon the legal position of the central bank, which is regarded as the crucial factor in determining its effective independence or lack of it. But to what extent is such a correlation valid? A comparison of six central banks shows that the gulf between legal provisions and political realities is occasionally very wide.     

Index Future Trading and Spot Market Volatility in Frontier Markets: Evidence from Ho Chi Minh Stock Exchange

Asia-Pacific Financial Markets - This study investigates the impact of index futures trading on the spot market volatility for Ho Chi Minh Stock Exchange (HOSE). The data used in this study are...